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Published on: August 25, 2016
Waterborne Interfacial-Reinforcement Strategy for Sustainable Natural Rubber Latex Bioelastomers With Self-Healing,
Dongna Li1, Zhen Li1, Xiaoge Ye1
1State Key Laboratory of Bio-based Fiber Materials, Tianjin University of Science & Technology, Tianjin, P.R. China.
Advanced Materials (Deerfield Beach, Fla.)
|August 10, 2026
Summary
Researchers developed advanced bioelastomers from natural rubber latex, reinforcing it with cellulose nanofibers and zinc oxide nanoparticles. These materials exhibit superior strength, self-healing, and crack resistance for diverse applications.
Area of Science:
- Materials Science
- Polymer Chemistry
- Biomaterials Engineering
Background:
- Developing bio-based elastomers with combined mechanical robustness, crack tolerance, self-healing, and durability is challenging.
- Natural rubber latex (NRL) offers a sustainable base, but requires functionalization for advanced properties.
Purpose of the Study:
- To create multifunctional bioelastomers using a waterborne interfacial reinforcement and functionalization strategy.
- To enhance the mechanical properties, self-healing capabilities, and functional durability of NRL-based materials.
Main Methods:
- Utilized ammonium persulfate (APS)-assisted treatment for interfacial coupling between NRL and cellulose nanofibers (CNFs).
- Incorporated ZnO nanoparticles to introduce physical junctions, UV shielding, and antibacterial properties.
- Employed a simple casting-based fabrication method.
Main Results:
- Achieved a tensile strength of 9.68 MPa and toughness of 15.30 MJ·m⁻³ in the optimized NRL-g-CNF/ZnO composite.
- Demonstrated efficient room-temperature self-healing with 96.9% tensile strength and 92.8% toughness recovery after 48 hours.
- Exhibited significant crack tolerance (fracture energy of 32.5 kJ·m⁻²), UV-aging resistance, antibacterial activity, and preliminary cytocompatibility.
Conclusions:
- The developed strategy successfully created multifunctional bioelastomers with a balance of mechanical strength, self-healing, and functional durability.
- The materials show promise for applications in packaging, protective coatings, antibacterial/UV-shielding films, and flexible non-implantable devices.
- The casting-based approach offers a potentially scalable route for producing these advanced bioelastomers.
